The helper T cells are activated by the antigens present in the antigen-presenting cells. They stimulate plasma B cells to produce antibodies. The two types of immune responses generated by the immune system of the body are non-specific and specific immune responses. Natural flora, physical barriers, chemical barriers, …

History The M16 was designed in 1956 and replaced the M14 as the U.S. military’s standard service rifle in 1969. forces in the Korean War. The emergence of the Russian AK-47 forced a redesign of the M14 to increase firepower and dependability, resulting in the adoption of the M16 during the Vietnam War. Development of …

Meany Meany is a surname. Notable people with the surname include: Edmond S. Meany, American historian, politician, and Mountaineer George Meany, American labor leader, first president of the AFL-CIO Mary K. Meany (1897-2000), American educator and politician Paul Meany, American musician Bugs Meany, a recurring …

Key difference: Abaya and hijab are two different kinds of clothing that are available to Islamic women. A hijab or hejab actually refers to the rules of covering up. However, in the usual everyday context, the word is used to refer to a scarf which covers the head. An abaya, on the other hand, can be described as a …

When you think of a bull, what comes to mind? A large, muscular animal with a raging temper, right? Well, that’s not entirely accurate. Contrary to popular belief, bulls are not always aggressive and dangerous. In fact, certain breeds of bulls are actually quite gentle and docile. On the other hand, oxen are true work …

Main Difference – Carbon Cycle vs Nitrogen Cycle Carbon cycle and nitrogen cycle are two processes that occur in ecosystems. Both processes are involved in interactions between animals and nature related things. The main difference carbon and nitrogen cycle is that carbon cycle is involved in the recycling of carbon …

Main DifferenceBasically the chancellor is the leader of any college or the university and on the other hand, the vice chancellor is the deputy to the chancellor leading the college or the university. Everybody is familiar with the term chancellor as he/she is the person who leads some college or university and this …

Key Difference – Coelenterates vs Platyhelminthes   Kingdom Animalia is divided into two main categories as vertebrates and invertebrates. Invertebrates are further divided into phyla out of which the two most primitive phyla are the Phylum Coelenterate and Phylum Platyhelminthes. Phylum Coelenterata, also …

There are different parts of the day depending on the time. Most of us have failed to understand which name is suitable for which part of the day. The four parts include; morning, afternoon, evening, and night. As the sun earth moves around the sun, it causes changes in times hence the four parts of the day. Most …

Genetic Engineering vs Biotechnology   Genetic engineering and biotechnology are two very important fields for nowadays lifestyles of humans, when versatility of these fields is considered. However, the increased use of genetic engineering to create different types of products including food and medicine has …